Activity Book: Logic Puzzles for Adults & Seniors: 500 Hard Puzzles (Sudoku - Fillomino - Straights - Futoshiki - Binary - Slitherlin

This Hard Logic Puzzles book is packed with the following features: - 48 Sudoku Puzzles, 36 Fillomino Puzzles, 48 Straights Puzzles, 32 Futoshiki Puzzles, 48 Binary Puzzles, 36 Slitherlink Puzzles,...